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HA13557AFH - Combo (Spindle & VCM) Driver

General Description

This COMBO Driver for HDD application consists of Sensorless Spindle Driver and BTL type VCM Driver.

Bipolar Process is applied and a “Soft Switching Circuit” for less commutation noise and a “Booster Circuit” for smaller Saturation Voltage of Output Transistor are also implemented.

Key Features

  • Soft Switching Driver Small Surface Mount Package: FP-48T (QFP48 Pin) Low thermal resistance: 30°C/W with 4 layer multi glass-epoxy board Low output saturation voltage  Spindle 1.44 V Typ (@1.8 A)  VCM 1.0 V Typ (@1.0 A) Functions.
  • 2.2 A Max/3-phase motor driver 1.5 A Max BTL VCM Driver Auto retract Soft Switching Matrix Start up circuit Booster Speed Disc.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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HA13557AFH Combo (Spindle & VCM) Driver ADE-207-234A (Z) 2nd. Edition July 1997 Description This COMBO Driver for HDD application consists of Sensorless Spindle Driver and BTL type VCM Driver. Bipolar Process is applied and a “Soft Switching Circuit” for less commutation noise and a “Booster Circuit” for smaller Saturation Voltage of Output Transistor are also implemented. Features • • • • Soft Switching Driver Small Surface Mount Package: FP-48T (QFP48 Pin) Low thermal resistance: 30°C/W with 4 layer multi glass-epoxy board Low output saturation voltage  Spindle 1.44 V Typ (@1.8 A)  VCM 1.0 V Typ (@1.0 A) Functions • • • • • • • • • • 2.2 A Max/3-phase motor driver 1.